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arXiv 2005.06390q-fin.STq-fin.CP
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金融应用中的多元非高斯模型

Multivariate non-Gaussian models for financial applications

Michele Leonardo Bianchi, Asmerilda Hitaj, Gian Luca Tassinari

摘要:

本文考虑了近年来文献中提出的几种应用于金融领域的连续时间多元非高斯模型。我们研究的模型集中在参数的数量,依赖结构的属性,和计算的易处理性的简约性。对于每个模型,我们分析了主要特征,我们提供了特征函数,四阶边缘矩,协方差和相关性。因此,我们描述了如何校准他们的时间序列的日志回报,着眼于实际应用和可能的数值问题。为了实证比较这些模型,我们进行了一个五维序列的股票指数对数收益率的分析。

英文摘要:

In this paper we consider several continuous-time multivariate non-Gaussian models applied to finance and proposed in the literature in the last years. We study the models focusing on the parsimony of the number of parameters, the properties of the dependence structure, and the computational tractability. For each model we analyze the main features, we provide the characteristic function, the marginal moments up to order four, the covariances and the correlations. Thus, we describe how to calibrate them on the time-series of log-returns with a view toward practical applications and possible numerical issues. To empirically compare these models, we conduct an analysis on a five-dimensional series of stock index log-returns.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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